Gaze following is critical to the successful performance of interpersonal interactions and the development of a range of higher cognitive abilities in individuals.As a core class of skills,gaze following is often modulated by facial expressions.Existing studies have used a Posner cueing task with target stimulus localization and found that the effect of facial expression on gaze following in general individuals was modulated by the presentation of experimental materials,whereas the gaze following of individuals with autism spectrum disorder(ASD)was not affected by the facial expression of other people in all presentations.This may be due to the hyperactivation of the subcortical pathway in individuals with ASD that is congenital and the abnormal development of the cortical pathway that develops later in life.Future research should focus on the influence of stimulus-onset asynchrony and gender factors in the regulation of facial expressions,and carry out multimodal neuroimaging techniques to comprehensively investigate the neural mechanisms of facial expressions on gaze following in individuals with ASD.In educational practice,attention should be paid to improving the ability of ASD individuals to follow the gaze of emotional faces,and deepen their understanding of the social meanings of facial expressions and gaze cues.
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